Electronic Display Device

1. An electronic display device, comprising: a display unit comprising a plurality of scan lines, a plurality of data lines, and plurality of pixels crossing the scan and data lines; and a barrier unit covering the display unit, the barrier unit comprising: a plurality of first areas and a plurality of second areas alternately arranged along a first direction, first electrode groups respectively provided in each of the first areas, each of the first electrode groups comprising a plurality of first sub-electrodes and a plurality of second sub-electrodes alternately arranged along a second direction, the second direction intersecting the first direction, second electrode groups respectively provided in each of the second areas on a layer that is above a layer on which the first electrode group is provided, each of the second electrode groups comprising a plurality of third sub-electrodes and a plurality of fourth sub-electrodes alternately arranged along the second direction, and an insulation layer above the first electrode group, the second electrode group being above the insulation layer, wherein: each of the first sub-electrodes neighbors a corresponding one of the third sub-electrodes without a gap therebetween along the first direction when viewed from a plane above the second electrode group, the plane being parallel to a plane defined by the first and second directions, and each of the second sub-electrodes neighbors a corresponding one of the fourth sub-electrodes without a gap therebetween along the first direction when viewed from the plane above the second electrode group.

2. The electronic display device of claim 1 , wherein: each of the first sub-electrodes, the second sub-electrodes, the third sub-electrodes, and the fourth sub-electrodes have a slit shape that is parallel to the first direction, lateral ends of the first sub-electrodes neighbor lateral ends of the third sub-electrodes without the gap therebetween along the first direction, and lateral ends of the second sub-electrodes neighbor lateral ends of the second sub-electrodes neighbors lateral ends of the fourth sub-electrodes without the gap therebetween along the first direction.

3. The electronic display device of claim 1 , further comprising first connection electrodes and first connecting portions that are connected to the first electrode groups, wherein: each of the first sub-electrodes of each of the first electrode groups includes a first end and a second end along the first direction, the first connection electrodes are provided in the second areas and the second electrode groups overlap the first connection electrodes, respectively, with the insulation layer therebetween, the first connection electrodes face the first ends of the first sub-electrodes, the first connection electrodes being arranged along the first direction, and the first connecting portions are between each of the first ends of the first sub-electrodes and the first connection electrodes to electrically connect the first sub-electrodes and the first connection electrodes.

4. The electronic display device of claim 3 , further comprising second connection electrodes and second connecting portions that are connected to the first electrode groups, wherein: each of the second sub-electrodes of each of the first electrode groups includes a first end a second end along the first direction, the second connection electrodes are provided in the second areas and the second electrode groups overlap the second connection electrodes, respectively, with the insulation layer therebetween, the second connection electrodes face the second ends of the second sub-electrodes, the second connection electrodes being arranged along the first direction, and the second connecting portions are between-each of the second ends of the second sub-electrodes and the second connection electrodes to electrically connect the second sub-electrodes and the second connection electrodes.

5. The electronic display device of claim 4 , wherein one of the third sub-electrodes and a corresponding one of the fourth sub-electrodes overlap with at least one of the connection electrodes among the first and second connection electrodes.

6. The electronic display device of claim 1 , further comprising third connection electrodes and fourth connection electrodes on the layer on which the first electrode group is provided so that the insulation layer is between the third and fourth connection electrodes and the second electrode groups, wherein: each third connection electrode is respectively electrically connected to the second electrode groups, the third connection electrode being electrically connected to each of the third sub-electrodes through first openings extending through the insulation layer, and each fourth connection electrode is respectively electrically connected to the second electrode groups, the fourth connection electrode being electrically connected to each of the fourth sub-electrodes through second openings extending through the insulation layer.

7. The electronic display device of claim 6 , wherein the first electrode groups, the third connection electrode, and the fourth connection electrode are provided under the insulation layer and farther from a screen of the display unit, and each of the second electrode groups are provided above the insulation layer and closer to the screen.

8. The electrode display device of claim 7 , wherein: the first openings are in respective second areas between the third connection electrode and the third sub-electrodes; and the second openings are in respective second areas between the fourth connection electrode and the fourth sub-electrodes.

9. An electronic display device, comprising: a display unit comprising a plurality of scan lines to transmit a plurality of selection signals, a plurality of data lines to transmit a plurality of data signals respectively corresponding to a first image and a second image formed according to an input signal, and a plurality of pixels connected to the scan lines and the data lines; and a barrier unit covering the display unit, the barrier unit comprising: a first area and a second area arranged adjacent to each other along a first direction, a plurality of first sub-electrodes provided in the first area and driven in synchronization with a corresponding first selection signal among the plurality of selection signals during a first period to display the first image, a plurality of second sub-electrodes provided in the first area and driven in synchronization with a corresponding second selection signal among the plurality of selection signals during a second period to display the second image, the first sub-electrodes and the second sub-electrodes being alternately arranged along a second direction in the first area, and the second direction intersecting the first direction, a plurality of third sub-electrodes provided in the second area and driven in synchronization with a corresponding third selection signal among the plurality of selection signals during the first period, a plurality of fourth sub-electrodes provided in the second area and driven in synchronization with a corresponding fourth selection signal among the plurality of selection signals during the second period, the third sub-electrodes and the fourth sub-electrodes being alternately arranged along the second direction in the second area, and the third and fourth sub-electrodes being provided on a layer that is above a layer on which the first and second sub-electrodes are provided, and an insulation layer above the first and second sub-electrodes, the third and fourth sub-electrodes being above the insulation layer, wherein: each of the first sub-electrodes neighbors a correspond one of the third sub-electrodes without a gap therebetween along the first direction when viewed from a plane above the third and fourth sub-electrodes, the plane being parallel to a plane defined by the first and second directions, and each of the second sub-electrodes neighbors a corresponding one of the fourth sub-electrodes without a gap therebetween along the first direction when viewed from the plane above the third and fourth sub-electrodes.

10. The electronic display device of claim 9 , wherein a portion of the barrier unit covering the first areas functions as an opaque area when the first and second images are displayed in the first area.

11. The electronic display device of claim 9 , wherein a portion of the barrier unit covering the second area functions as an opaque area when the first and second images are displayed in the second area.

12. The electronic display device of claim 9 , wherein the input signal has at least a first viewing point image and a second viewing point image, the first image is generated by combining the first viewing point image and the second viewing point image in an order beginning with the first viewing point image and progressing to the second viewing point image over time, and the second image is generated by combining the first viewing point image and the second viewing point image in an order beginning with the second viewing point image and progressing to the first viewing point image over time.

13. The electronic display device of claim 9 , wherein, during the first period, a voltage of a first voltage level is applied to the plurality of first sub-electrodes and the plurality of third sub-electrodes, and a voltage of a second voltage level is applied to the plurality of second sub-electrodes and the plurality of fourth sub-electrodes.

14. The electronic display device of claim 13 , wherein the barrier unit comprises first and second substrates facing each other while having a liquid crystal layer therebetween and a common electrode formed on an inner surface of the first substrate, and the plurality of first sub-electrodes, the plurality of second sub-electrodes, the plurality of third sub-electrodes, and the plurality of fourth sub-electrodes are provided between an inner surface of the second substrate and the liquid crystal layer.

15. The electronic display device of claim 14 , wherein the voltage of the second voltage level is the same as a voltage of the common electrode.

16. The electronic display device of claim 9 , wherein, during the second period, a voltage of a first voltage level is applied to the plurality of first sub-electrodes and the plurality of third sub-electrodes, and a voltage of a second voltage level is applied to the plurality of second sub-electrodes and the plurality of fourth sub-electrodes.

17. The electronic display device of claim 16 , wherein the barrier unit comprises first and second substrates facing each other while having a liquid crystal layer therebetween and a common electrode formed on an inner surface of the first substrate, and the plurality of first sub-electrodes, the plurality of second sub-electrodes, the plurality of third sub-electrodes, and the plurality of fourth sub-electrodes are provided between an inner surface of the second substrate and the liquid crystal layer.

18. The electronic display device of claim 17 , wherein the voltage of the first voltage level is the same as a voltage of the common electrode.

19. The electronic display device of claim 9 , wherein the input signal comprises one of 3D graphics data including three-dimensional space coordinates and surface information of an object to stereoscopically display an image on a plane surface, and stereoscopic image data including viewing point image data.